Google's policy may not be the most generous one, and there are better return policies out there, but that doesn't equate to "crappy service". It's simply fulfilling exactly what they promised. Actually, in this case, they were willing to go beyond their stated policy by providing a replacement long after the return period.
Instead, if your printer story is accurate, in that all you did was simply (without any argument) request a replacement printer six months after you bought it, didn't have to deal with the manufacturer, didn't have to pay for the replacement before they would send it out (and then get reimbursed after returning the defective item), and there weren't any other extenuating circumstances (e.g. Amazon made a mistake by allowing this replacement), then you are correct. That indeed is great customer service, above and beyond the call of duty, as well as their standard 30 day return and replacement policy. That warrants praising and recommending Amazon, but it doesn't make Google's service "crappy".